Apple Computer shipped its first computer in March 1976. Since that time we have grown to become a major supplier of personal computing systems.    APPLE-II is our newest product. It represents several advancemente in the personal computing state-of-the-art: the incorporation of color graphics onto a single-board system along with color graphic commands in a BASIC; a ROM BASIC and monitor; and the use of the new 16k x 1 RAM chips to achieve 48k bytes on-board memory space.    Because of the advanced design, APPLE-II uses 1/3 to 1/4 the number of components previously used in 1st generation personal computing products. This has a significant effect on reliability and enables APPLE-II to be priced below competitive systems of inferior capability. As all APPLE products, APPLE-II is delivered fully assembled & tested, making it a truly off-the-shelf computer system, priced below the cost of many kits.

   Apple-II consists of a 6502 microprocessor, powerful video display electronics including color graphics, from 4k to 48k bytes on-board RAM, up to 12k bytes ROM (8k supplied--6k BASIC, 2k monitor), a cassette interface, an ASCII keyboard port and the APPLE GAME I/O connector for paddles and other game controls, all on a 8 1/2 x 11 (legal size) PC Board! List4ed below is a brief overview of the product.

VIDEO DISPLAY
   The Apple-II includea a versatile video display section which displays memory as text, color graphics, or hi-resolution graphics (completely transparent memory access). Both graphics modes can be optionally selected to include 4 lines of text at the bottom of the display area. All display modes are software selectable. In addition, the user can select under software one of two memory blocks to be displayed.

Text

• 40 characters/line, 24 lines.
• 5 x 7 upper case characters.
• Normal or inverse video.
• Extensive display control software in ROM.
• Full cursor control.
• Fast display.
• Dual page mode.

Color Graphics

• 40h x 48v resolution
  (40h x 40v with 4 lines text).
• 16 colors.
• BASIC commands to use easily: COLOR=, PLOT, HLIN, VLIN, SCRN.
• Color generation done digitally.
• Dual page mode.

Hi Resolution Graphics

• 280h x 192v dots.
  (280h x 160v with 4 lines text).
• 4 color--black, white, blue, green.
• Displays 8k bytes (requires 12k minimum system).
• Dual page mode.

MEMORY
   APPLE-II uses both the 4k and the new 16k dynamic RAMS. BY using 3 rows of the 16k chips (24 chips) the incredible density of 48k bytes on-board RAM is achieved. APPLE first delivered a microcomputer using 16k RAMS in December, 1976. Apple is, at this time (1st quarter 77), the only personal computer manufacturer using these advanced chips. Since these 16k chips reduce the memory chip count by a factor of 16 (compared to 2102's), the reliability is far superior and the power requirements are reduced enormously. The 15k RAM will be the chip used in future microcomputers, advailable now, only from APPLE.    APPLE-II also includes 8k bytes of ROM memory which contains BASIC (7k) and a powerful system monitor (2k). This makes loading BASIC from tape unnecessary and assures that BASIC is just a few keystrokes away. Two extra ROM sockets are included for future APPLE software.

• Up to 48K bytes on-board RAM--no external RAM boards needed!
• The only personal computer system to use 16k RAMs.
• 24 chips = 48k bytes, the equivalent of 384 2102's at 1/20 the power!
• Unique automatic dynamic RAM refresh system (completely transparent).
• BASIC and MONITOR on ROM.

I/O
   APPLE-II contains a fast cassette interface (1500 bps) which can be called from the monitor or from BASIC (SAVE, LOAD). It is extremely reliable and can be used with any home cassette recorder.
   APPLE-II has 8 connectors which serve as a peripheral card motherboard. The connectors contain the address, data, control & timig busses, all fully buffered.    Each peripheral slot is numbered (0-7). Many APPLE-II peripherals will contain on-card ROM-based driver software, enabling the BASIC to call the peripheral by simply specifying a slot number (i.e. PR #4, IN #5).    Also included are an ASCII keyboard port, speaker, apple game i-o connector. The APPLE GAME I/O connector greatly simplifies interfacing game controls. It has inputs for 4 pots (paddles joysticks, etc.), 3 TTL inputs and 4 TTL outputs.

• Fast cassette interface: 1500 bps
• 8-slot motherboard
  • Fully buffered busses & timing.
  • Daisy-chained interrupt priority structure.
  • Daisy-chained DMA priority structure for burst-mode or cycle-steal DMA.
• ASCII keyboard input port.
  • Supplies all power.
  • 7 bits ASCII and positive strobe inputs.
• GAME I/O Connector. Inputs for Paddles, joysticks buttons, etc.
• PERIPHERAL BOARDS
  • Parallel Interface Board--April 77.
  • Serial Interface Board--April 77.
  • A/D, D/A Board--April 77.
  • EROM Board with 2708 programmer--May 77.
  • Music Synthesis Package--June 77.
  • Mini Floppy Controller--July 77.